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st: Check for coding of new variables using data patterns


From   "Thirukumaran, Caroline Pinto" <[email protected]>
To   [email protected]
Subject   st: Check for coding of new variables using data patterns
Date   Tue, 22 Oct 2013 14:19:24 -0400

Hi,
Is there a way to check the coding of a newly created variable using
data patterns of variables that have used to create the new variable?

As an example, newvar is a variable that has been created based on
values of var1-var5. The code used for creating the newvar variable is
as follows:
egen newvar=rsum(var1 var2 var3 var4 var5)

To check that newvar has been correctly coded, it would be helpful to
have an output like the one below:

newvar var1 var2 var3 var4 var5 Frequency
0 0 0 0 0 0 10
1 0 0 0 0 1 20
1 0 1 0 0 0 40
2 0 0 1 1 0 70
2 0 1 1 0 0 80
3 2 0 1 0 0 110
3 1 0 1 0 1 120
4 1 0 1 2 0 130

-collapse-  gives an acceptable output (it does not give me the
frequency count) only when var1 -var5 are binary.

I am using Stata 12.1 for Windows.

I get the output tabulated above from SAS using the following code:
proc freq data=abc;
 tables newvar*var1*var2*var3*var4*var5 / list missing;
run;

Many thanks in advance,
Caroline Thirukumaran
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